Epoch time synchronization method with continuous update for distributed simulation

S. Lee, X. Zhao, A. Shendarkar, K. Vasudevan, Y. Son

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A new time synchronization method for distributed simulations is proposed. In this approach, each federate estimates its potential synchronization point (PSP)). The coordinator, after receiving PSPs, selects the minimum of them (synchronization point (SP)). Each federate then advances its time to SP. While each federates advances its time, it re-calculates its PSP whenever the certain system status changes, and sends it to the coordinator. The coordinator updates SP when the updated PSPs affect it, and notifies its new SP to the federates. When a federate reaches close to the actual epoch event, the synchronization method switches to the conservative phase.

Original languageEnglish (US)
Title of host publication12th IFAC Symposium on Information Control Problems in Manufacturing, INCOM 2006, and Associated Industrial Meetings
Subtitle of host publicationEMM'2006, BPM'2006, JT'2006
PublisherIFAC Secretariat
EditionPART 1
ISBN (Print)9783902661043
StatePublished - 2006

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
NumberPART 1
ISSN (Print)1474-6670


  • Enterprise modeling
  • Manufacturing systems
  • Scheduling algorithms
  • Simulation
  • Time synchronization

ASJC Scopus subject areas

  • Control and Systems Engineering


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